Abraham p



(No Model.)

A. P. DE VOURSNEY.

LAMP AND OHANDELIER.

' Patented May 9, 1882.

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INVENTOR:

By his .Attorneys,

WITNESSES.

N. PETERS. Fhula'Lilhognpher. Wnhinglon. D. C.

UNETED STATES PATENT OFFICE.

ABRAHAM I. DE VO UBSNEY, ()F MONTGLAIR, NEW JERSEY.

LAMP AND CHANDELIER.

SPECIFICATION forming part of Letters Patent No. 257,478, dated May 9,1882.

Application filed September 30, 1881.

To all whom it may concern:

Be itknown that I, ABRAHAM P.DE Vonns- NEY, a citizen of the UnitedStates, residing in hlontclair, Essex county, New Jersey, have inventedcertain Improvements in Lamps and Chandeliers, of which the following isa specification.

This invention relates to that class of lamps in which an elevatedreservoir to contain the oil is employed in connection with afloat-valve to regulate the admission of the oil to the burner 5 and itconsists partly in the construction and arrangement of the elevatedreservoir and the reflector, partly in the construction and arrangementof the valve, and partly in the combination of the various parts, aliaswillbe more particularly hereinafter set forth, and d efined in theclaims.

In the drawings which serve to illustrate my invention, Figure 1 is asectional elevation of the lamp; and Fig. 2 is a sectional view of thevalve-scat, drawn to a larger scale than Fig. 1.

Ais a conical reflector with a central aperture for the passage of thechimney B.

(J is the oil-reservoir, which is in the nature of a tubular ring orannulus, made by preference to fit into an angle formed by the reflectorand a raised rim or flange, a, on the same. To avoid as far as possiblethe transmission of heat from the reflector to the reservoir,1prefer tosupport the latter on two or more raised ribs or projections, 11 I), onthe reflector, as shown.

Two or more pendent arms, cc,extcnd from the reflector down to the outershell or jacket, 1), of the oil-well D of the lamp, on which is mountedin the usual way any good form of burner, E. I have shown an ordinaryArgand burner provided. with the usual chimney and a flat wick, d; butany suitable form of burner may be employed.

Inside of the oil well is fixed a tubular floatguide and wick-guard, 0,preferably made from some foraminous material, so as to permit the oilto find the same level within it as without. This guideis preferablycylindrical, as is also the jacket D and well D, and said guide isarranged and secured about in the axis of the well, and is provided witha pointed or conical top, f. The oil-well has a tight bottom, g, and

(X0 model.)

is screwed down into or upon an oil-supply chamber, F, the joint beingpacked tightly by means of a soft washer, h.

From the reservoir C an oil-supply pipe, i, extends down throughtheliollow of the pendent arm 0, thence through the annular spacebetween the jacket D and the well D, and thence through the bottom gintothe chamber F. The flow of oil from the reservoir to the chamber F maybe cut off or regulated by a suitable cock,j.

Fixed tightly in the bottom 9 of the oil-well is a valve-seat, 7- theaxis of which is vertical. This seat has a longitudinal conical bore,into which is fitted by grinding aconical plug-valve, 1, arranged pointupward. This valve is connected at its upper end with a hollow float, G,arranged within the float-guide c. The float is guided in its movementsup and down in part by the walls of the tube 0, and in part by a pin, m,on its upperend, which passes through a hole in a cross-bar in the capf. When the oil flows into the chamber F from the reservoir it rises.through the valvefaperture and to a predetermined height in theoil-well, when the float G will be lifted by its own buoyancy and drawthe valve I up to its seat, thus cutting off the influx of oil. As theoil is consumed the float and valve fall and allow the oil to again flowin.

The wick d of the lamp, directed by the conical cap f, passes down intothe annular space around the tube 0, and is prevented by the latter frominterfering with the float G. The valve is coupled loosely to the floatto avoid friction in the movements, and the valve is or may be providedwith adjustable and removable weights 4, to insure against its stickingfast to its seat. The weight is made adj ustable, so that no more thanis necessary may be employed. The float should have buoyancy enough toproperly seat the valve, but not enough to draw it too strongly upinto'its seat.

The chamber F is made readily removable, so that the valve may be got atand cleaned and adjusted with facility.

I find in practice that the heat from the burner is liable tocommunicate itself to the oil-well, and also to the reservoir, throughthe reflector or shade, and this is apt to generate vapors in theoil-well, which create a pressure therein and depress the float, thusseriously deran gin g the operation of the lamp. To avoid this I mountthe reservoir, as before stated, on interposed slender projections,either secured to the reservoir itself, to the reflector, or to neither,but simply interposed; and I provide the oil-well with an outer shellorjacket, D, before described, whereby an air-space is formed around thewell, and perforate this outer shell or jacket at 0 0, near its top andbottom, whereby a circulation of air is maintained around the said wellat all times. The reflector also has perforations or apertures 0 0, topermit air to pass upward around the reservoir 0 and protect it againstradiated heat.

' The pipe i may or may not pass through the arm 0 and shell D. I employthis construction in deference to appearances and for convenience only.

The reservoirO may be of any size required, and the lamp may besuspended from above by means of cords or chains 19 The reflector A mayalso be of any suitable size, and be more or less coned, as desired oraccording to the circumstances of the case. Indeed, it might be flat, soas to reflect the rays downward, and it may be plain, corrugated, orconstructed in any way common in reflectors.

In lieu of admitting the oil first to the chamber F and then to thevalve, it may be admitted directly to the'valve by carrying the pipe 6to the valve-seat, and arranging it to tap the same at the side. In thisconstruction it would be necessary to open communication between thechamber F and the oil-well.

I am aware that oil-reservoirs have been mounted on and insulated fromreflectors of street-lamps, and that annular air chambers or passageshave been arranged around the oilwells of lamps, and I make no claim tothese broadly; nor do I claim broadly the employment of a float andvalve to regulate the admission of oil to the oil-well, said float beingprotected by a perforated guard, as these are not new. I am not aware,however, that an elongated tubular valve-seat, like that herein shown,and a guide and guard for the float, constructed as herein shown, haveever before been employed. Therefore I claim as new 1. The combination,with the reflector provided with a flange, to, having perforations 0, ofthe annular reservoir mounted onthe reflector, as shown, and insulatedtherefrom by suitable interposed ribs or projections, as set forth.

2. The combination of the elongated valveseat, the elongated plug-valvearranged to fit the same, the adjustable weights n, the perforated orapertured guide 0 for the float, and the float Gr, linked loosely to thevalve and arranged to be guided in its vertical movement, substantiallyas set forth.

3. The combination of the reflector, the reservoir, the arms 0 0, theoil-pipe t, arranged in the arm 0, the cock j, oil-well D, jacket D, andreceiving-chamber F, the jacket D being screwed into said chamber F, andall arranged substantially as shown.

4:. The combination of the oil-well, the perforated jacket, the burner,the oil-receiver secured removably to the jacket, the elongated valveand seat, the float, and the foraminous float guide and guard arrangedwithin the well, all arranged substantially as set forth.

5. The combination of the reflector, the annularreservoir mounted onandinsulated therefrom, the arms or supports 0 c, the oil-pipe 1', theburner, the oil-well, the perforated jacket, the oil-receiver and float,the float guide and guard, and the elongated valve-seat and valve, allarranged to operate substantially as set forth.

In witness whereof I have hereunto signed my name in the presence of twosubscribing witnesses.

ABRAHAM P. DE VOURSNEY. Witnesses:

HENRY CONNETT, ARTHUR O. FRASER.

